Social Workers Addressing Firearm Risk (SAFR)
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About
Aim 2: Evaluate the preliminary efficacy of the SAFR intervention using a randomized controlled trial. An additional 100 practicing social workers (excluding participants from Aim 1) will be recruited, with n = 50 allocated to each arm of the study utilizing block randomization. Participants in the control arm will receive invitations to all surveys but not to the SAFR intervention itself. We will utilize the validated measures from Aim 1 to assess changes on study variables. Results will be analyzed using either mixed linear models or generalized estimating equations as appropriate. Analyses will be performed with a focus on estimation of parameters for use in the planning of a subsequent comparative trial designed to fully assess intervention efficacy with a national sample. Supportive analyses that adjust for participant covariates will also be considered. We will also ask participants for feedback on the intervention and will track indicators of feasibility and acceptability (recruitment rates, completion of intervention and measurement tools).
Full description
Specific Aim 2: Evaluate the efficacy of the SAFR intervention. Once measurement tools have been validated, we will begin to recruit for the pilot test of the SAFR intervention. Recruitment methods will be similar to those in Aim 1; individuals who participate in Aim 1 will not be eligible to participate in the trial of SAFR. Participants will be randomized equally to the control and intervention groups. Participants will be invited to enroll in the study by clicking on links in advertisement materials. The link will take them to a brief webpage with information about the study and questions screening for eligibility. Once screened, they will complete the informed consent document and await randomization. Participants in the intervention group will receive an email with instructions on how to access the pre-test measurements and the course. Because the course is online and self-paced, they will be given six weeks to complete the course, with reminders coming once a week to encourage completion. The UB SSW Continuing Education website allows us to track information about participants, including time to completion for all users; this information will be utilized to assess the acceptability of the course. The pre-test survey will include the scales assessing knowledge, attitudes, and behaviors towards assessing for risks of firearm violence among clients, in addition to a demographic survey and the Gun Control Attitudes and Gun Behaviors and Beliefs Scales. The post-test, which will be sent out one month after the pre-test, assuming that the course was successfully completed, will contain the measures regarding knowledge, attitudes, and behaviors. We will also be assessing for acceptability of the intervention by including questions that ask participants for their thoughts on the course. Finally, the follow-up will be sent three months after the completion of the post-test and will assess knowledge, attitudes, and behaviors a final time. The control group will receive the three surveys (without course feedback items) on the same timeline. At the conclusion of the study, they will be invited to receive the SAFR intervention at no cost.
Data analysis plan. To describe the observed variability in the data and test for differences between randomized groups, linear or generalized linear models will be utilized depending on the nature of the outcome. Once a given model is fit, a linear contrast based on the estimated model parameters will be constructed and used to test for the overall effect of random assignment. Point estimates and corresponding confidence intervals to quantify treatment differences will be provided. Since the comparability of randomized groups may be questioned due to chance imbalances in confounding variables, subject-level covariates known to be predictive of outcome and their interactions with randomized assignment will be added to the models as a series of supportive analyses. All analyses will be performed based on the intent-to-treat principle. The amount and nature of missing data for collected study variables will be characterized and no method of imputation will be used for missing data for primary analyses. All tests will be two-sided and tested at a 0.05 nominal significance level. Standard diagnostic plots will be used to assess model fit and transformations of variables may be considered in order to meet statistical assumptions. With the proposed sample size, mean differences of 0.6 standard deviations are detectable at 80% power. Group-specific means and proportions will be estimated with an associated confidence interval width of 0.55 standard deviations and 28 percentage points, respectively.
Hypotheses:
Aim 2: The SAFR intervention will improve social workers' knowledge of gun violence, attitudes about social workers' need to intervene with all clients, and behaviors regarding discussing guns and gun violence risks with clients compared to pre-test and the control group. We also hypothesize that the SAFR intervention will be feasible and acceptable.
Enrollment
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Inclusion criteria
- Practicing social worker
- In New York
- Age 18 or older
- English proficiency
Exclusion criteria
- Not meeting above criteria
Trial design
Primary purpose
Allocation
Interventional model
Masking
111 participants in 2 patient groups
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Central trial contact
Mickey Sperlich, PhD; Patricia B Logan-Greene, PhD
Data sourced from clinicaltrials.gov
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